Means of attaching elevator-buckets to belts



(No Model.)

P. A. WITTIOH & P. W. STRADER.

MEANS OF ATTAOHING ELEVATOR BUGKETS T0 BELTS.

. No. 281,746, Patented July 24,1883.

N, PETERS Mb-Lflbognph'n Washington. D. C.

UNITED STATES PATENT OFFICE.

FREDERICK A. VVITTICH AND PETER \V. STRADER, OF ASHTABULA, OHIO.

MEANS OF ATTACHING ELEVATOR-BUCKETS TO BELTS.

SPECIFICATION formingpart of Letters Patent No. 281,746, dated July 24, 1883. Applieatlon filed May 12,1883. (NomodeL) o all whom it may concern.-

Be it known that we, F. A. Wrrrrcn and P. W. STRADnR, of Ashtabula, in the county of Ashtabula and State of Ohio, have invented certain new and useful Improvements in Means for Attaching Elevator-Buckets to their Belts; and we do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

Our device relates to improved means for attaching elevator and hoisting buckets to their belts; and it consists in the parts and combination of parts as will be more fully described, and pointed out in the claims.

In the accompanying drawings, Figure l is a plan view of our improvement. Fig. 2 is a vertical sectional view through a bucket and belt. Fig. 3 is a detached perspective view of one of the bolts. Figs. 4, 5, and 6 show modified forms of our device, and Fig. 7 is a view of one of the bolts.

A represents an endless belt, provided at suitable intervals apart with the parallel metallic bars or strips B, which are connected with one or more ribs, 6. These bars or strips are secured to the belt by rivets, or by spurs formed integral with the bars or strips, and with the arm depending from the lower of said bars. These bars or strips are secured transversely upon the belt, and through a space be-' tween the upper bar and the ribs or lips (6, extending from the lower bar, the bolts G are passed, the rear of the said bars forming a seat for thehead of the bolt. The end ribs, 0, (shown in Figs. 1 and 4,) are cut away on their under side, to enable the heads of the bolts to be moved out even with the ends of the bars or strips B, for the purpose of accommodating them to the holes in the buckets, and also for the purpose of permitting of the removal of any dirt, dust, or other substance that may settle in the slots. Under the old method it often happens,

from the heads of the bolts being exposed and coming in contact with face of pulleys, that sufficient friction is produced to throw off sparks, thereby causing explosions and fires in mills. Thus it is readily seen that, from our improved device and manner of attaching, this danger is The overhanging lip of lower bar or strip is cut away at one or more points for introducing head of bolt, while the lip 011 upper bar is left straight its entire length. The upper and lower bars or strips are each provided, respectively, above and below the slot, with an overhanging lip, (6*, having a longitudinal round, hooked, or V' shaped rib, f, while the corresponding face of the bolt-head is provided with two grooves adapted to reg ister with the ribs. The bars or strips B are secured firmly to the belt, and the bolt-heads, registering with the ribs, are easily adjusted. The lower bar or strip is provided with one or more depending arms, F, the outer surface of which latter are formed in same plane with bars or strips B, affording a solid, substantial bearing for the rear face of the buckets.

In Fig. 2 the gradual bevel of bars and depending arms is shown. The arms hold the buckets away from the belt, and consequently protect said belt from the wear occasioned by the constant resting of buckets thereon. In Fig. 4 we have shown bars or strips B provided with a central rib, 0, thereby forming two oblong slots. In this instance the overhanging lip of lower bar is out at two points, a, for inserting bolts. In Fig. 5 we have shown the two bars or strips of equal length, whose opposite ends extend beyond their common plane, connected by a single central rib. This construction forms two open slots and enables the bolts to be introduced at opposite ends without removing the endless belt from its casing. In Fig. 6 we show the same without the depending arms.

It is evident we could make the bars or strips B of each holder independent of each other, as the peculiar construction of the bolt-heads, registering with overhanging lips when nuts are screwed on, will hold them in their proper relative position, as well as substantially secure the buckets; but for economy in casting and facility in attaching we prefer to connect them by ribs 0. These holders admit of re moval and replacing of buckets without removing the casing from around the belt, as the bolt-holes in the buckets are generally placed near the opposite ends thereof.

It is immaterial at what point or points we cut away the overhanging lip of the lower bar.

The overhanging lip of upper bar presenting and are first placed within the slots a.

a straight and unbroken edge, the bolts, when screwed up, will hold buckets firmly and securely even at points of insertion. The bolts are provided with square or rectangular heads, The bucket is then placed against the holder, and bolts moved sidewise until they register with belt holes in the buckets. Nuts are then screwed onto the threaded ends of the bolts and securely hold the buckets in position.

Our improved device is exceedingly simple. It can be manufactured at a small initial cost, is durable in use, and greatly facilitates. the attachment and removal of the buckets.

It is evident that slight changes in the con 7 struction and arrangement of the several parts might be resorted to without departing from the spirit of our invention, and hence we would have it understood that we do not confine ourselves to the exact construction shown and described, but consider ourselves at liberty to make. such changes and alterations as fairly fall within the spirit and scope of our invention.

Having fully described our invention, what we claim as new, and desire to secure by Letters Patent, is

1. The combination,with a belt with a series of metallic bars or strips attached to it, the said bars or strips being provided with depending bearing-arms, of bolts held in position by said bars or strips, and buckets secured to bolts and bearing on bars or strips and depending arms thereof, substantially as set forth.

2. The combination, with a belt, of a series of metallic bars or strips, forming oblong slots a, attached to said belt, said bars or strips be ing provided with depending arms, bolts the heads of which fit in the slots, and buckets provided with holes to receive the bolts, said buckets adapted to rest on the plates and depending arms thereof, substantially as set forth 3. The combination of a belt with a series of metallic bars or strips, forming slots, secured thereto, said bars or strips being pro vided with overhanging lips a and depending bearing-arms, bolts the heads of which fit in said slots, and buckets provided with boltholes, substantially as set forth.

4;. The combination, with a belt with a series of metallic bars or strips, forming slots, secured thereto, the side ribs, 6, of which latter are cut away 011 their inner faces, the said metallic bars or strips being provided with depending arms, of bolts the heads of which fit in the said slots, and buckets provided with bolt-holes, all of the above parts combined and adapted to operate as described.

In testimony whereof we have signed this specification in the presence of two subscribing witnesses.

FREDERICK A. wirrioI-I. PETER w. STRADER.

Vitnesses:

FRANK G. Blooms, EDGAR HALL. 

